| Summary table |
|---|
| Variable |
Value |
Source |
| GRB_name_Fermi |
GRB080906212 |
|
| T0 |
5:05:11 UTC |
GCN_circulars,Fermi GBM Det |
| ra |
182.8000° |
Fermi_GBM |
| decl |
-6.4000° |
Fermi_GBM |
| pos_error |
2.75e+00° |
Fermi_GBM |
| T90 |
2.875 s |
Fermi_GBM |
| T90_error |
0.767 s |
Fermi_GBM |
| T90_start |
5:05:11.552 UTC |
Fermi_GBM |
| fluence |
5.87e-06 erg/cm² |
Fermi_GBM |
| fluence_error |
1.39e-07 erg/cm² |
Fermi_GBM |
| T100 |
3.427 s |
|
| GBM_located |
True |
|
| mjd |
54715.21193287037 |
GCN_circulars,Fermi GBM Det |
| Fermi GBM table |
|---|
| GRB_name_Fermi |
GRB080906212 |
| trigger_name |
bn080906212 |
| ra |
182.8000° |
| decl |
-6.4000° |
| pos_error |
2.75e+00° |
| datum |
2008-09-06 |
| t_trigger |
5:05:11.547 UTC |
| T90 |
2.875 s |
| T90_error |
0.767 s |
| T90_start |
5:05:11.552 UTC |
| fluence |
5.87e-06 erg/cm² |
| fluence_error |
1.39e-07 erg/cm² |
| flux_1024 |
2.03e+01 erg/cm²/s |
| flux_1024_error |
3.33e-01 erg/cm²/s |
| flux_1024_time |
3.84e-01 erg/cm²/s |
| flux_64 |
2.48e+01 erg/cm²/s |
| flux_64_error |
1.45e+00 erg/cm²/s |
| GCN 8214 table |
|---|
| GRB_name |
GRB080906B |
| GCN_number |
8214 |
| Detection_method |
Fermi GBM Det |
| t_trigger |
5:05:11 UTC |
| ra |
185.5000° |
| decl |
-8.6000° |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 8214
SUBJECT: GRB 080906B: Fermi GBM detection
DATE: 08/09/11 16:01:22 GMT
FROM: Elisabetta Bissaldi at MPE
E. Bissaldi, S. McBreen and A. von Kienlin (MPE)
report on behalf of the Fermi GBM Team:
"At 05:05:11 UT on 6 September 2008, the Fermi Gamma-ray Burst Monitor
triggered and located GRB 080906B (trigger 242370312 / 080906212).
The on-ground calculated location, using the Fermi GBM
trigger data, is RA = 185.5, Dec = -8.6 (J2000 degrees)
(equivalent to J2000 12h 22m, -08d 36'),
with a statistical uncertainty of 3.3 degrees (radius, 1-sigma
containment; there is additionally a systematic error which is
currently estimated to be 2 to 3 degrees). The angle from the
Fermi LAT boresight is 32 degrees.
This GRB consists of one main emission phase comprising
several overlapping pulses, with an estimated T90 (50-300 keV)
of about 5 s. The time-averaged spectrum from T0 to T0+3.8 s is
best fit by a Band function with the following parameters:
alpha = -0.07 +/- 0.09
beta = -2.10 +/- 0.07
Epeak = 125.3 +/- 6.6 keV
The fluence (25-1000 keV) is 10.9 (+/-0.1)E-06 erg/cm2.
The peak flux (25-1000 keV) on the 128 ms timescale
is 22 +/- 4 ph/s/cm2.
The spectral analysis results presented above are preliminary;
the final results will be published in the Fermi GBM GRB Catalog."
|